6533b86efe1ef96bd12cb5bd

RESEARCH PRODUCT

Embeddings of graph braid and surface groups in right-angled Artin groups and braid groups

John CrispBert Wiest

subject

graph groupBraid group20F36Group Theory (math.GR)Graphright-angled Artin groupCombinatorics20F36 05C25 05C25symbols.namesakeMathematics::Group Theory05C25Euler characteristicFOS: MathematicssymbolsBraidEmbeddingArtin groupGeometry and Topologygraph braid groupMathematics - Group Theoryconfiguration spacecubed complexMathematics

description

We prove by explicit construction that graph braid groups and most surface groups can be embedded in a natural way in right-angled Artin groups, and we point out some consequences of these embedding results. We also show that every right-angled Artin group can be embedded in a pure surface braid group. On the other hand, by generalising to right-angled Artin groups a result of Lyndon for free groups, we show that the Euler characteristic -1 surface group (given by the relation x^2y^2=z^2) never embeds in a right-angled Artin group.

10.2140/agt.2004.4.439http://arxiv.org/abs/math/0303217